Revolution Burning Questions: Who Made the Ultimate Sacrifice?

Monday's Revolutionplayed out like a murder mystery, ending on one heck of a (potentially deadly) cliff-hanger. Who betrayed their friends? Who might be dead? Get the answers to the five biggest burning questions. [Warning: The following contains major spoilers from Monday's Revolution]

Nora spills all It wasn't easy, of course, but after undergoing excruciating torture at the hands of Monroe, Nora (Daniella Alonso) gave in (and we don't blame her!). Of course, once all her secrets have been spilled, Monroe orders her to be put down. Thankfully, Rachel's old co-worker John delivers Nora to the rebels instead (never leave a scientist to do a monster's work).

What's the T on The Tower? Upon hearing that Rachel's (Elizabeth Mitchell) heading to The Tower, Monroe (David Lyons) nearly kills Randall (Colm Feore) for keeping the location a secret from him. Wiley as ever, Randall convinces the general that Monroe needs him alive in order to get inside, and the pair head West. Little do they know, Miles (Billy Burke) and Co. are hot on his tail! And because John was quick enough to steal a pendant, they're flying in style, to boot.

Has Nora gone bad? When Miles' gang takes a quick pit stop in the Plains Nation, his crew begins to get picked off one by one. Though the killer's M.O. is that of the region, they begin to suspect it's one of them. In a classic And Then There Were None move, Miles forces everyone to put their guns and weapons all in a bag. Nora then reveals she's been experiencing blackouts since being injected by torture serum at Monroe's and worries that she might be the killer. Miles sticks up for her, though no one else does. Too bad Charlie (Tracy Spiridakos) doesn't have the same faith in her boo.

The mole is revealed When Miles finds a bloody knife on Jason (JD Pardo) , everyone, Charlie included, becomes convinced he's the killer. Jason vehemently denies it, and it turns out, he was telling the truth for once! The real killer is Miles' old militia buddy Jim, whose wife is being used as leverage to force him to turn on the rebels. Thankfully, Jason was on hand to save the day.

Rachel makes the ultimate sacrifice When faced with a tough situation, it always seems as though Rachel's preferred option is murder. Now that the militia is at The Tower, she decides to kill Monroe as a distraction, allowing Aaron (Zak Orth) an opportunity to get inside. Of course, that most likely means she'll die in the process. Rachel goes for it nonetheless, waltzing into Monroe's tent with a grenade.